Electrical Connection - Wolf CGU-2-18 Installation And Maintenance Instructions Manual

DHW tank sensor connection
- When a cylinder is to be connected, the blue socket
of the cylinder sensor must be connected to the blue
plug of the control unit.
- Observe the cylinder installation instructions.
Connection, programmable input E1 (<24 V)
Connect the connecting cable for input 1 at terminals E1
in accordance with the wiring diagram; first remove the
jumper between a and b from the respective terminals.
The functions of input E1 can only be scanned and
adjusted with Wolf control accessories with eBUS
capability.
Connection of digital Wolf control accessories
(e.g. BM, MM, SM1, SM2, KM)
Only connect control units from the Wolf accessory
range. Each accessory is supplied with its own
connection diagram.
Use a 2-core cable (cross-section > 0.5 mm²) as the
connecting cable between the control unit accessory
and the gas fired boiler.
Connection, analogue outside temperature sensor
The analogue outside temperature sensor for digital
control accessory (e.g. BM) may be connected to the
terminal strip of the gas fired boiler at the connection AF
or the terminal strip of the BM.
3062347_0309

Electrical connection

CGU-2(K) CGG-2(K)
Blue plug
Fig.: Blue plug, cylinder sensor connection
Fig.: Connection, programmable input
Fig.: Digital Wolf control accessories connection (eBUS
interface)
Fig.: Connection, analogue outside temperature sensor
Note
Pay attention
+ , -
to polarity
17